3.4 The Head-Up Display (HUD)

On the left side of the HUD is a ladder showing your current airspeed in
nautical miles per hour (it displays true airspeed). Above that, in the
upper left corner, is a G-meter.

The right ladder shows altitude; above that
is a readout of your current angle-of-attack in degrees ("a=X.X").
Your
jet will stall at a 30 degrees positive angle of attack and negative 16
degrees.

The airplane symbol (something like "-O-") shows the direction
that the relative wind is coming from. The relative wind combines your
current angles of attack and sideslip. A ladder in the center of the
HUD show your aircraft's current attitude.

The lower, horizontal ladder shows your current heading. Discretes in the
lower left-hand corner show the state of your weapons systems. Slightly
above them is a readout of your current thrust percentage as well as the
state of your engine's afterburner – the "AB" symbol means the
afterburner is on.